Transition from a two-dimensional superfluid to a one-dimensional Mott insulator
Other Condensed Matter
2009-11-13 v2
Abstract
A two-dimensional system of atoms in an anisotropic optical lattice is studied theoretically. If the system is finite in one direction, it is shown to exhibit a transition between a two-dimensional superfluid and a one-dimensional Mott insulating chain of superfluid tubes. Monte Carlo simulations are consistent with the expectation that the phase transition is of Kosterlitz-Thouless type. The effect of the transition on experimental time-of-flight images is discussed.
Cite
@article{arxiv.cond-mat/0701616,
title = {Transition from a two-dimensional superfluid to a one-dimensional Mott insulator},
author = {Sara Bergkvist and Robert Saers and Emil Lundh and Anders Rosengren and Magnus Rehn and Anders Kastberg},
journal= {arXiv preprint arXiv:cond-mat/0701616},
year = {2009}
}
Comments
4 pages, 4 figures. Slightly revised according to referee requests